If you find YouTube to be a little too busy or just aren't a fan of the comments, ViewPure is a handy bookmarklet to focus your YouTube experience on just the video you want to watch.

ViewPure is pretty simple to use. You can either visit viewpure.com and enter a YouTube URL for purified view, or just install their bookmarklet and click it whenever you're on a YouTube video page that you want to "purify." As an added bonus it appears to get rid of the ads, too.